<template>
  <div class="departments-container">
    <div class="app-container">
      <el-card class="tree-card">
        <!-- 用了一个行列布局 -->
        <treeTools
          :node-data="company"
          :is-root="true"
          @add-depts="handleAddDepts"
        />
        <el-tree
          :data="departs"
          :props="defaultProps"
          default-expand-all
        >
          <!-- 作用域插槽 ---data:当前节点的数据-->
          <template #default="{data}">
            <tree-tools
              :node-data="data"
              :is-root="false"
              @del-depts="getDepartments"
              @add-depts="handleAddDepts"
              @edit-depts="handleEditDepts"
            />
          </template>
        </el-tree>
      </el-card>
    </div>
    <!-- @update:dialogVisible="dialogVisible=$event" -->
    <add-dept
      ref="addDeptRef"
      :dialog-visible.sync="dialogVisible"
      :node-data="nodeData"
      :depts="depts"
      @close="closeDialogFn"
      @add-depts="getDepartments"
    />
  </div>
</template>

<script>
import treeTools from './components/tree-tools.vue'
import { reqGetDepartments } from '@/api/departments'
import { tranListToTreeData } from '@/utils'
import AddDept from './components/add-dept.vue'

export default {
  name: 'Departments',
  components: { treeTools, AddDept },
  data() {
    return {
      nodeData: {},
      dialogVisible: false,
      company: { },
      departs: [],
      defaultProps: {
        label: 'name',
        children: 'children'
      },
      depts: []
    }
  },
  created() {
    this.getDepartments()
  },
  methods: {
    // 编辑
    handleEditDepts(nodeData) {
      this.dialogVisible = true
      this.nodeData = nodeData
      this.$refs.addDeptRef.getEmployeeSimple()
    },
    // 增加
    handleAddDepts(nodeData) {
      this.dialogVisible = true
      this.nodeData = nodeData
    },
    closeDialogFn(flag) {
      this.dialogVisible = flag
    },
    async getDepartments() {
      const { data: { depts, companyName }} = await reqGetDepartments()
      // console.log(JSON.parse(JSON.stringify(depts)))
      this.depts = depts
      // 转成树状结构
      this.departs = tranListToTreeData(depts, '')
      this.company = {
        name: companyName,
        manager: '负责人',
        id: '' // 一级部门的pid为空
      }
    }
  }
}

</script>

<style scoped lang="scss">
.tree-card {
  padding: 30px;
  font-size:14px;
}
.el-tree {
  ::v-deep {
    // 小三角的样式, 去掉默认的小三角的旋转效果
    .el-tree-node__expand-icon.expanded {
      -webkit-transform: rotate(0deg);
      transform: rotate(0deg);
    }
    // 有子节点 且未展开 +
    .el-icon-caret-right:before {
      background: url("~@/assets/common/add-circle.png") no-repeat 0 0;
      content: '';
      display: block;
      width: 16px;
      height: 16px;
      font-size: 16px;
      background-size: 16px;
    }
    // 有子节点 且已展开 -
    .el-tree-node__expand-icon.expanded.el-icon-caret-right:before{
      background: url("~@/assets/common/minus-circle.png") no-repeat 0 0;
      content: '';
      display: block;
      width: 16px;
      height: 16px;
      font-size: 16px;
      background-size: 16px;
    }
    // 没有子节点
    .el-tree-node__expand-icon.is-leaf::before  {
      background: url("~@/assets/common/user-filling.png") no-repeat 0 0;
      content: '';
      display: block;
      width: 16px;
      height: 16px;
      font-size: 16px;
      background-size: 16px;
    }
  }
}
</style>

